Strong plasmonic enhancement of photovoltage in graphene.
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Authors
Echtermeyer, TJ
Britnell, L
Jasnos, PK
Gorbachev, RV
Grigorenko, AN
Geim, AK
Novoselov, KS
Publication Date
2011-08-30Journal Title
Nat Commun
ISSN
2041-1723
Publisher
Springer Science and Business Media LLC
Volume
2
Pages
458
Language
eng
Type
Article
Physical Medium
Electronic
Metadata
Show full item recordCitation
Echtermeyer, T., Britnell, L., Jasnos, P., Lombardo, A., Gorbachev, R., Grigorenko, A., Geim, A., et al. (2011). Strong plasmonic enhancement of photovoltage in graphene.. Nat Commun, 2 458. https://doi.org/10.1038/ncomms1464
Abstract
From the wide spectrum of potential applications of graphene, ranging from transistors and chemical sensors to nanoelectromechanical devices and composites, the field of photonics and optoelectronics is believed to be one of the most promising. Indeed, graphene's suitability for high-speed photodetection was demonstrated in an optical communication link operating at 10 Gbit s(-1). However, the low responsivity of graphene-based photodetectors compared with traditional III-V-based ones is a potential drawback. Here we show that, by combining graphene with plasmonic nanostructures, the efficiency of graphene-based photodetectors can be increased by up to 20 times, because of efficient field concentration in the area of a p-n junction. Additionally, wavelength and polarization selectivity can be achieved by employing nanostructures of different geometries.
Sponsorship
Engineering and Physical Sciences Research Council (EP/E500935/1)
Identifiers
External DOI: https://doi.org/10.1038/ncomms1464
This record's URL: https://www.repository.cam.ac.uk/handle/1810/286108
Rights
Licence:
http://www.rioxx.net/licenses/all-rights-reserved
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